Abstract: A firearm with a cartridge has a barrel with an inside surface, a barrel length that is measured starting from a chamber to a barrel muzzle, and a barrel shaft, wherein the cartridge has a single, sabot-free projectile with a peripheral surface. A gap that is open end-to-end in the direction of the barrel shaft is present along at least 90% of the barrel length and over at least 90% of the circumference of the projectile between the peripheral surface of the projectile and the inside surface of the barrel.

Abstract: A firearm has a barrel, a trigger, a bolt assembly and a magazine well with a longitudinal direction, in which a magazine is movably accommodated in the longitudinal direction. A manually actuable slide is movable substantially transversely to the longitudinal direction. The slide engages on a driver connected to the magazine and moves the driver with the magazine from a safety position into a feed position.

Abstract: A firearm has a barrel, a trigger, a bolt assembly and a magazine well with a longitudinal direction, in which a magazine is movably accommodated in the longitudinal direction. A manually actuable slide is movable substantially transversely to the longitudinal direction. The slide engages on a driver connected to the magazine and moves the driver with the magazine from a safety position into a feed position.

Abstract: A fully automatic handgun has a barrel and a blowback, open bolt firing breech mechanism, which is mounted in a displaceable manner on a guide. The breech mechanism has a slide with a substantially U-shaped bracket, on which a breechblock is arranged. The slide is displaceably mounted on the guide and on the barrel.

Abstract: A fully automatic handgun has a barrel and a blowback, open bolt firing breech mechanism, which is mounted in a displaceable manner on a guide. The breech mechanism has a slide with a substantially U-shaped bracket, on which a breechblock is arranged. The slide is displaceably mounted on the guide and on the barrel.